Administration Console Online Help

Create an SNMP network
channel

An SNMP agent communicates
through a port that accepts UDP traffic and another port that accepts
TCP traffic. By default, all TCP traffic uses the host server's listen
port. For example, if you target this agent to a server named
ManagedServer1 and ManagedServer1 listens for requests on port 7001,
then the SNMP agent listens for TCP requests on port 7001. When
communicating through a TCP port, WebLogic Server protects SNMP
communication from denial of service (DOS) attacks.

If you want to separate SNMP TCP traffic from business traffic, you
can create a custom network channel.

To create a custom network
channel for SNMP, do the following on each WebLogic Server instance that
hosts an SNMP agent:

If you have not already done so, in the Change Center of the Administration Console, click Lock & Edit (see Use the Change Center).

In the
Administration Console, under Domain Structure,
expand Environment and select
Servers.

On the
Summary of Servers page, in the
Servers table, click the name of a server that
hosts an SNMP agent.

On the
Server: Configuration: General page, click the
Protocols tab. Then click the
Channels sub-tab.

On the Servers: Protocols: Channels page,
click the New button.

In the Create a New Network Channel
assistant:

Enter a name for your network channel. The name is for your
identification purposes only; it is not used when communicating
with SNMP managers.

In the
Protocol list, select
snmp.

Click the
Next button and complete the remaining
steps of the assistant. For more information, see Configuration Options.

When you have
completed the assistant, click the Finish
button.

To activate these changes, in the Change Center of the Administration Console, click Activate Changes. Not all changes take effect immediately—some require a restart (see Use the Change Center).

Result

Any SNMP agent that you target to this WebLogic Server instance will
automatically use the SNMP network channel that you created.